Electrical moving chart



Jan- 17, 1956 E. R. HAYHURST ELECTRICAL MOVING CHART 3 Shee't.s sheet lFiled July 2. 1951 Jan. 17, 1956 E. R. HAYHURs-r ELECTRICAL MOVING CHARTFiled July 2, 1951 Err/esl Ray Hay/:Ursi

INVENTOR.

BY @gam-.1,

Jan. 17, 1956 E. R. HAYHURs'r ELECTRICAL MOVING CHART 3 Sheets-SheetI 3Filed July 2, 1951 mk 9S QQ I Gm. Q l S N m5 vm wm mm n m9 DE mN` wh NQE m E m mS m@ m m/ u* @E EE\ MSE mi m Mm, V wrm W M R w I m W um UnitedStates Patent O i ELECTRICAL MOVING CHART Ernest Ray Hayhurst, Richwood,Va.

Application July 2, 1951, Serial No. 234,815

4 Claims. (Cl. 40-32) This invention relates to illustrative charts, andmore particularly to an electrically operated multi-moving chart orapparatus which is useful in the presentation of illustrative lectures,sermons, and the like.

While the invention will be illustrated and described hereinafter in anembodiment adapted for depicting the coordinated travel of biblical andtheological characters through the ages, it will be readily apparent-that the invention may be used with equal facility in the displayingand demonstration of other characters, objects, materials, and the like,the relationship of which with respect to time, process, or use is to beillustrated.

It is the principal object of the invention to provide a displayapparatus of the character described comprising a plurality of movingcharts upon which is adapted to be arranged various figures or objectswhich it is desired to display and concurrently move along at the sameor at a different speed. l

Another object of the invention is to provide a d isplay apparatus, asdescribed, which comprises a plurality or. charts which are operativelyconnected so as to be movable in a predetermined manner and utilized ina common prime mover. h

An important feature of the invention comprises the utilization of aplurality of endless lms or belts which are arranged to be drivensimultaneously while supported on a frame, the frame being adjustable,at least longitudinally, to accommodate charts or belts of differentsizes or lengths. Another feature of the invention resides in theprovision of adjustable supports for maintaining the travelling filmscarrying the objects to be displayed on an even keel, and whereby themoving charts may be arranged one above the other and operated withoutinterference.

These, together with various ancillary features and objects of theinvention, which will later become apparent as the following descriptionproceeds, are attained by the present invention, a preferred embodimentof which has been illustrated by way of example only, in theaccompanying drawings, wherein:

Figure l is a perspective view of an electrically operated moving chartthat is constructed and operated in accordance with this invention;

Figure 2 is a plan view of the apparatus shown in Figure l;

Figure 3 is a fragmentary detail view on an enlarged scale showing thetelescoping tubular frame construction which provides for longitudinaladjustment while preventing the tubular members from coming apart whenadjusting the same;

Figure 4 is a cross-sectional view taken on the plane 4-4 of Figure 3;

Figure 5 is a similar cross-sectional view taken on the plane 5--5 ofFigure 3 and illustrating the means provided for adjustably positioningthe tubular frame members and maintaining the same in telescopinginterlocked arrangement;

2,730,826 Patented Jan. 17, 1956 Figure 6 is a cross-sectional viewtaken on the plane 6-6 of Figure 3;

Figure 7 is a vertical sectional View taken on the plane 7--7 of Figure2 and looking in the direction of the arrows;

Figure 8 is an enlarged fragmentary view, partly in section, andillustrating the arrangement for adjustably supporting the endless beltor film and comprising the moving charts; and

Figure 9 is a plan view similar to Figure 2, partly broken away, andillustrating a modification of the driving arrangement for moving thecharts.

Referring now specifically to the accompanying drawings, wherein likenumerals designate similar parts throughout the various views, it willbe seen that the display chart or apparatus, as illustrated in Figure l,comprises two endless travelling belts A and B which are supported formovement on an adjustable frame, gen-y erally designated 10. The frame,which is preferably' constructed of light-weight, tubular members orpipe sections suitably threaded together, comprises upstanding legmembers 12 and 14, and 16 and 18 arranged in pairs; which are connectedtogether at the top by the cross-- frame members 2i) and 22,respectively. These pairs of leg members are joined together below theirmiddle sec-V tion by pipe sections 24 and 26, respectively, the lowerpipe cross-frame members being suitably joined by means of unions 28 and30. These opposed pairs of upstand ing leg members are adjustablysecured together by' means of telescoping pipe sections 32 and 34arranged*` near the bottom thereof, and longitudinally extendingymembers 36 and 38 positioned near the top.

To allow for longitudinal adjustment of the frame 10;. the members 32,34, 36, and 38 are connected at opposite ends to the frame bytelescopingv pipe and rod? sections, generally indicated at 40, theconstruction of' which is best shown in Figure 3. As illustrated, the:construction comprises a tubular section 42 which is: threaded at itsouter end into the T-tting 44 on` a leg member, such as 18. At theopposite end, the tubular `section 42 is arranged to receive a smallerdiameter rod 46 in telescoping engagement, The tubular section 42 isprovided on its outer side with an elongated slot 48 having thecommunicating vertically disposed end slot portions 49 for slidablyreceiving a set screw 5l) which is threaded onto the end portion 52 ofthe rod 46. Thus, by turning down the set screw 50 so that it engagesthe inner surface of the tubular section 42, as at 54 (Figure 5), therod 46 and tubular member 42 may be iirmly held against relativemovement. The end slot portions 49 are provided to receive the set screw50 when it is desired to lock the rod 46 to member 42 in either a fullyextended or retracted position. Further, when adjusting the length ofthe rods 46, as by loosening the set screw 5t) and slidably adjustingthe rod in the tubular section 42, the set screw prevents the rod fromsliding out of the tubular member 42 by engagement of the same againstthe inner end surface portion of the slot 48. If desired, the rod member46 may be a hollow supported for movement over the rollers 60, 62, 64,and

66, the rollers 6i), 62 and 64 being suitably journaled 'on the stubaxles 65, 76, and 72, respectively. To drive the belt, the roll 66 iskeyed to a driven shaft 74 which is geared to a motor 78. The motor andassociated speed redoer'a're suitably'supported Von a base 79 which inturn is supported on the pipe frame extension 81. The motor 78. isoperatively Contested t0. the Shaft 7 4 through, a .Speed reducer 80,which, as illustrated in Figure 2, comprises in- .trwatd warms 82 .and84 for driving a Sprocket YShaft 86 at the desired speed. A smallsprockety 87 is mounted on the outer end of the shaft 86 and is arrangedto drive a larger sprocket 8,8 on a shaft 9j) by means of a chain S2. AUsmall4 Sprocket 9.4 ,Carried by the` Shaft 9.9 is operatively connectedthrough a chain 96jto`a sprocket 98 which is keyed to the shaft 74.Accordingly, operation of the motor 78 causes rotation of the shaft 7,4through the interconnecting chain and sprocket mechanism whereby theroller 66 which is keyed to the shaft 74 is driven, t0 cause movement ofthe belt A over the rollers. The rollers 6 0, 62,64 and 66 are suitablysupported on the vertically arranged spaced bars 100 and 101 which arefastened to the longitudinally extending adjustable frame members 34 and3,6, as shown in Figure l. The driven shaft 74 upon which the roller 66is mounted is suitably journaled in the bartll, as shown at 103. Forpreventing sagging of the belt A as'it passes along the bottom section 104, a rod 106 isvarranged centrally therebeneatli so as to extendtherealong and form a support for the belt A, the rod 106 beingsupported at one end, as at 108, in the bar 100, and at the opposite endin a cross-bar 110 fastened tothe uprights 16 and 18, as at 112. The rod106 is slidably supported in the cross-.bar 110 to Provide forlongitudinal movement of the rod relative to the cross-bar, asillustrated in Figure l by thedotted lines.

Arranged below the endless belt A is the second endless belt member B.This second endless belt is supported for movement on the rollers 116and 118, the roller 116 being suitably supported for rotation on thestub shaft 120 which in turn is supported on the vertical bar 100. Theroller 118 is keyed to the shaft 122 which is suitably journaled in thevertically arranged bar 10,1. For driving the endless belt B, a sprocket124 is keyed to the shaft 122, which is suitably journaled in theupright bar 101, the sprocket being arranged to be driven from the shaft74. This is accomplished by means of a chain 126 which is operativelyconnected to a sprocket 128 on the shaft 74 and running over the idlersprocket 13 0 mounted on the st ub axle 132 which is carried by the bar101, as illustrated in Figure l. For adjustably supporting the belt Balong the upper section or run 136, there are provided S-shaped members173.8 and 14,0 which are fastened to the vertical supports 1Q()` and 101respectively. These S-shaped members are provided with an outwardly orforwardly extending end portion'142 and 144, respectively, which arearranged to provide a lateral support Afor the parallel bars 146 and 148which are arranged to extend longitudinally beneath Vthe belt B. Theseparallel bar members 146 and V148 are suitably welded or lotherwisesecured to the laterally extending S-shaped members. The members 146 and148 are suitably fastened, as by welding, to the laterally 'eX- tendingsupporting sections 142 and 144, as shown at 150 in Figure H8. Toprovide 4for longitudinal adjustment of the parallel bars 146 and 148, aU-shaped tubular end section 152 is'provided, and which is suitablyiiXed to the lateral support 142 and arranged to telescope 4over thebars 146 and 148, apertures 154 and 156 being provided in the U ,shapedmember 152 in order to permit the ends of the bars 146 and 148 to extendtherethrough when the supports are moved closely together, and asilustrated by the dotted lines in F igure `8.

`Referring to Figure 9, a modification of the driving mechanism for theendless. belt is shown, wherein provisionis made for changing the speed'so that two different speeds may be employed. In `this modification,a`notor 160 which" is suitably mounted on the base member 79, similar'tothe embodiment shown'in Figure l, is connected through aV speed `reducer162 and the driven shaft`164 which' extendstherefrorn carries a vlargesprocket 166 and a Smaller .Sproket 168 These Sprockets are keys@ to theshaft 164 by means o f set screws 170 and 172, respectively. The smallsprocket 168 is arranged drive a large sprocket 174 on the shaft 90 bymeans of a chain 176. Similarly, the large sprocket 166 is drivinglyconnected by means of a chain 178 to a small sprocket 180 mounted on theshaft 9,0, these sprockets 174 and 180 being keyed to the shaft by meansof set screws 182 and 184, respectively. The shaft 90, upon which thesprocket 94 is fixed, is suitably journaled at its outer ends, as at 186and 188, inthe upstanding frame members v18 and 16, respectively.

Utilizing the arrangement shown in Figure 9, the shaft may be drivenatVtwo different speeds. For example, assuming the shaft 90 is driven bythe pair of sprockets 168 and 174, and it is desired to change the speedto a higher one, it is only necessary to loosen the set screws 172 and182 ,to release or loosen the sprockets on the operating shafts and turndown the set screws 17,0 and 184 so that thev shaft 9.0 will 110W bedriven by thel larger sprocket 166 and cooperating smaller sprocket y180on the shaft 90,. Thus, by driving the shaft Q0 by means ofone or ,theother of the pairs of sprockets, two different speeds may be easilyobtained m To provide a suitable base for supporting various objects.such as may be positioned 0n the endless belts A lid B, spaced pairs ofslats or bars 19,0 are suitably fixed t'o the top frame members 36 and3.3 at OPPQSit ndSf The frame. These slats are preferably attached tothe iustable frame .members 40 by UbQlfS 1.22@ Y As illustrated inFigure i, there is arranged for movef ment on the endless belt A anangelic figure 19,6 which is pivotally secured tothe outer end of a iiatmetalsitrip 19,8 Which extends outwardly from the edge of the belt andis suitably fastened to the belt, as illustrated inFigure 1'. "By thuspivotaily mounting the ,figure 196 o'n outer end of the` strip member128, the object tends to remainupf right during movement of the beltandthe Vfigure or object to be displayed does not interfere withV thesupport 106 positioned beneath the lower run of the belt. Upon thelowerk endless belt B objects, such as a dragQIl` 200, are suitablyfixed upon the surface of the belt so a'sr'to pass around the rollers116 and 118 when the belt is driven. As will be readily understood,other figures, charts or objects, of course, may be similarly mounted:on endless belts and operated so as to be carried al pgfsjnilill.

taneously and displayed as the belts are driven.

,It will vfurther'be appreciated that by shifting of the chain drive 126relative ,to the sprocket 124 so tht `the opposite run of the .chaindrives the sprocket, the direction of travel of the belt B may bechanged relative to the belt A, as desired. I Y i 4 i Brom theforegoing, the Construction and Operation' .Of'

the Ldfsvice will be .readily understvvd, and, .f uftht .df Scriptiesand sXplanatiOn' is .believed u'naeasary- HOW,-

eVr, inasmuch Vas -numerous modifications and changes will readily occurto those "skilled the art, it is not desired to limit'the inyerlthiQn tothe exacr'construction shown and described, and, accordingly, allsuitable modifications and equivalents may be resorted to Afallingwithin the Score ,of vthe .appended claims Having described theinvention what is claimed as new is: l

l. A moving display chart comprising a frame, said frame beingadjustable horizontally, horizontally dis,- posed endless bel eansarrwgedfor movement on said frame andupon which` objects" fordisplayfare" adapted to be mounted, means for ldriving Said belt,and'rneans for Avarying 'the directional movement' andthe trav Speed 0iSaid belt, Said horizontally adjustable `t comprising "aQneansvlforftensi saidendl'ess'belt means. l i' A "ifln a device of thecharacter described, a frame, means for la'c'ljts'ting"said frametovaryits width, aplniil rality of endless belts mounted for movementon'said frame, said belts being disposed one above the other,longitudinally extending means arranged beneath the major portion of thelower run of said upper belt to maintain said run free from sagging,longitudinally eX- tending means disposed beneath the major portion ofthe upper run of said lower belt for preventing the sagging of saidbelt, and means for driving said endless belts concurrently, saidlongitudinally extending means being longitudinally adjustable inresponse to adjustment of said frame.

3. A moving display chart comprising a portable frame, said frameincluding end members, longitudinal members connecting said end members,spaced brackets mounted on said longitudinal members adjacent said endmember, sets of rollers on said brackets, conveyor belts cntrained oversaid sets of rollers between said brackets, drive means on said framefor said conveyor belts driving at least one roller from each set, saidlongitudinal members being horizontally adjustable for moving saidbrackets toward and away from each other to vary the length of theconveyor belt runs, support means for one of the runs of each conveyorbelt, said support means being horizontally adjustable with saidlongitudinal members, said sets of rollers being arranged in verticallyspaced relation to one another.

4. A moving display chart comprising a portable frame, said frameincluding end members, longitudinal members connecting said end members,spaced brackets mounted on said longitudinal members adjacent said endmembers, sets of rollers on said brackets, conveyor belts entrained oversaid sets of rollers between said brackets, drive means on said framefor said conveyor belts driving at least one roller from each act, saidlongitudinal members being horizontally adjustable for moving saidbrackets toward and away from each other to vary the length of theconveyor belt runs, support means for one of the runs ol each conveyorbelt, said support means being horizontallyadjustable with saidlongitudinal members, said sets of rollers being arranged in verticallyspaced relation to one another, said drive means including verticallyspaced gears on one of said brackets, an endless chain entrained oversaid gears, one of said gears driving a roller of one set of rollers, agear mounted on one of the rollers of the other set of rollersselectively engaging each run of the chain to drive the second conveyorbelt unidirectionally with and in reverse direction to the secondconveyor belt.

References Cited in the file of this patent UNITED STATES PATENTS332,306 Traylor Dec. l5, 1885 434,082 Hart Aug. 12, 189() 867,804 DavisQct. 8, 1967 1,231,495 Martin June 26, 1917 1,906,762 Maynes May 2, 19331,993,339 Eschenbach Mar. 5, 1935 2,376,932 Moller May 29, 19452,537,758 Hersh lan. 9, 1951 2,579,807 Egolf Dec. 25, 1951

